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diff --git a/libstdc++-v3/testsuite/tr1/3_function_objects/function/4.cc b/libstdc++-v3/testsuite/tr1/3_function_objects/function/4.cc
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+// 2005-01-15 Douglas Gregor <dgregor@cs.indiana.edu>
+//
+// Copyright (C) 2005 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING.  If not, write to the Free
+// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+// USA.
+
+// 3.7.2 polymorphic function object wrapper
+#include <tr1/functional>
+#include <testsuite_hooks.h>
+#include <testsuite_tr1.h>
+
+using namespace __gnu_test;
+
+bool test __attribute__((unused)) = true;
+
+// Put function objects into function<> wrappers
+void test04()
+{
+  using std::tr1::function;
+
+  do_truncate_float_t truncate_float;
+
+  function<int(float)> f1(truncate_float);
+  VERIFY( f1 );
+  VERIFY( !!f1 );
+  VERIFY( !(f1 == 0) );
+  VERIFY( !(0 == f1) );
+  VERIFY( f1 != 0 );
+  VERIFY( 0 != f1 );
+
+  // Copy-construction
+  function<int(float)> f2(f1);
+  VERIFY( f2 );
+
+  // Invocation
+  VERIFY( f1(3.1f) == 3 );
+  VERIFY( f2(3.1f) == 3 );
+
+  // Assignment to zero
+  f1 = 0;
+  VERIFY( !f1 );
+
+  // Swap
+  f1.swap(f2);
+  VERIFY( f1 );
+  VERIFY( !f2 );
+  VERIFY( f1(3.1f) == 3 );
+
+  // Assignment from a function pointer
+  f2 = do_truncate_float_t();
+  VERIFY( f2(3.1f) == 3 );
+
+  // target_type and target() functions
+  const function<int(float)>& f1c = f1;
+  VERIFY( typeid(do_truncate_float_t) == f1.target_type() );
+  VERIFY( f2.target<do_truncate_float_t>() != 0 );
+  VERIFY( f1c.target<do_truncate_float_t>() != 0 );
+}
+
+int main()
+{
+  test04();
+
+  VERIFY( do_truncate_double_t::live_objects == 0 );
+  VERIFY( do_truncate_float_t::live_objects == 0 );
+
+  return 0;
+}